A multi-environment application situation awareness-based active protection type noise reduction earplug

Abstract

The application discloses a kind of active protection type noise reduction earplug based on multi-environment application situation awareness, including earplug inner ear body and earplug outer ear body, static screw, moving screw, electric motor, screw guide rail and screw guide rail passage are arranged in earplug inner ear body, screw guide rail passage is set in the inner wall of earplug inner ear body, screw guide rail is fixedly installed in screw guide rail passage, the front end of static screw is equipped with electric motor, the end of static screw and moving screw form screw nesting type connection, the front of moving screw is provided with sliding block, and sliding block is slidably connected with screw guide rail;Earplug outer ear body is provided with reducing push rod, first connecting ring, retaining ring, second connecting ring, push rod sliding sleeve;Earplug inner ear body and earplug outer ear body are detachably connected by first connecting ring and second connecting ring, and are fixed by fixed screw;Earplug inner ear body outer wall and earplug outer mold inner wall are nestedly connected, and the outer wall of earplug outer mold is provided with the foam soft material that is attached to human inner ear wall.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of noise protection equipment, in particular to an active protection type noise reduction earplug based on multi-environment application situation awareness. BACKGROUND

[0002] Environmental noise is increasingly serious, and long-term work in a noisy environment can cause workers' hearing to decline, so workers need to take health protection measures. The noise in the outside world can have a negative impact on people's life, study and work. The most common protection measure is to let workers wear noise reduction earplugs.

[0003] The existing noise reduction earplugs on the market have defects in structure. The structure of the noise reduction damper in the existing noise reduction earplug is relatively simple. The existing noise reduction earplug cannot effectively block and reflect high-frequency noise. The propagation of noise is relatively smooth, the number of blocked and reflected times is small, the energy consumption is low, and the noise reduction effect is poor. In addition, the existing noise reduction earplug does not have an early warning function. When the noise suddenly becomes large, the earplug cannot cope with the sudden strong noise, which may cause irreparable damage and harm to the user. For workers who often switch between environments requiring strong noise and weak noise, the existing noise reduction earplug mainly needs to rely on the hand to take off and wear the earplug from the ear, which causes great trouble to the work. Conventional noise reduction earplugs cannot cope with strong noise and can only meet the noise reduction requirements of daily life. However, they cannot protect hearing and suppress noise in noisy environments such as aviation ground crew and die casting stamping. In addition, the existing noise reduction earphones need to be combined with ear warmers and other tools for warmth in cold environments, and need to increase fans and other tools for cooling in hot environments, which is very cumbersome to wear. SUMMARY

[0004] The purpose of the present application is to overcome the deficiencies in the prior art and provide an active protection type noise reduction earplug based on multi-environment application situation awareness. Through the design of situation awareness, active protection type noise reduction, and application in various environments, the problem of noise reduction in complex environment places is solved, the noise reduction effect is improved, and the hearing of the user is protected.

[0005] The purpose of the present application is achieved by the following technical solutions:

[0006] An active protection type noise reduction earplug based on multi-environment application situation awareness, comprising an inner ear plug body and an outer ear plug body, wherein the inner ear plug body is internally provided with a static screw, a dynamic screw, an electric motor, a screw guide rail, and a screw guide rail channel, the screw guide rail channel is arranged on the inner wall of the inner ear plug body, the screw guide rail is fixedly installed in the screw guide rail channel, the front end of the static screw is provided with the electric motor, the tail end of the static screw is connected with the dynamic screw in a screw nesting mode, the front part of the dynamic screw is provided with a sliding block, and the sliding block is connected with the screw guide rail in a sliding mode.

[0007] The earplug outer ear body is provided with a variable-diameter push rod, a first connecting ring, a set screw retainer ring, a second connecting ring, a fixing screw, a push rod sleeve, and a retainer ring thread; the outer ring wall of the first connecting ring is provided with a retainer ring thread, and the retainer ring thread movably connects the set screw retainer ring; a plurality of push rod sleeves are uniformly distributed on one side of the retainer ring thread, and the variable-diameter push rod is slidably connected in the push rod sleeve; the push rod sleeve is provided with a push rod screw, and the set screw retainer ring fixes the push rod screw to the variable-diameter push rod.

[0008] The earplug inner ear body and the earplug outer ear body are detachably connected through the first connecting ring and the second connecting ring, and are fixed through the fixing screw on the second connecting ring; the outer wall of the earplug inner ear body is nestedly connected with the inner wall of the earplug outer mold, and the outer wall of the earplug outer mold is provided with a foam soft material which is attached to the human inner ear wall.

[0009] Further, the static screw can rotate under the driving force of the electric motor, thereby driving the dynamic screw to move along the screw guide rail, realizing the function of changing the extension and contraction state of the static screw and the dynamic screw; the electric motor is a stepper motor, and the number of rotations of the electric motor is fixed.

[0010] Further, the earplug inner ear body tail is provided with a sound sensing element, and the sound amplitude is taken as the detection standard; the static screw has m sound wave channels, and the dynamic screw has n sound wave channels; when no strong noise exceeding 130 decibels is detected, the static screw and the dynamic screw are in an extended state, and the sound wave only needs to pass through x sound wave channels formed by the front part of the static screw and y sound wave channels formed by the static screw and the dynamic screw together, y < x < m, x < n; when the sound sensing element detects strong noise exceeding 130 decibels, the static screw and the dynamic screw change from the original extended state to the contracted state, and the sound wave needs to pass through m+n sound wave channels formed by the static screw and the dynamic screw together, thereby reducing the intensity of the sound wave.

[0011] Further, the push rod sleeve and the push rod screw are circumferentially and uniformly distributed on the first connecting ring, and eight push rod screws are uniformly adjusted and fixed by the set screw retainer ring; the fixing effect of the push rod screw on the variable-diameter push rod is determined by the rotation of the set screw retainer ring on the retainer ring thread.

[0012] Further, the earplug outer ear body is detachably connected with the earplug inner ear body as a accessory, and the earplug outer ear body is mounted and matched on the earplug inner ear body through the first connecting ring and the second connecting ring; the position between the earplug outer ear body and the earplug inner ear body is adjusted according to the needs of the user, and is fixed through the fixing screw on the second connecting ring.

[0013] Further, the earplug outer ear body is provided with a foam ring, the foam ring surrounds the variable-diameter push rod, each variable-diameter push rod can be freely adjusted, and the foam ring can adjust the size and shape of the inner diameter of the foam ring according to the movement of the variable-diameter push rod to adapt to the shape of the outer ear of different people.

[0014] Further, the density of the foam ring gradually increases from the inner diameter to the outer diameter, that is, the density of the side close to the ear is small, and the density of the side far away from the ear is large; the specific density of the foam ring is that the density of the inner diameter is 1 / 2 of the average density of the ear, and the density of the outer diameter is 3 / 2 of the average density of the ear, and the density formula meets Where R is the outer diameter of the foam ring, r1 is the inner diameter of the foam ring, r is the variable, p0 is the average density of the ear, and k is the density gradient of the foam.

[0015] Further, the earphone outer ear body is also provided with an electric heating wire and a fan, the electric heating wire can generate heat, and the fan is used for blowing the heat generated by the electric heating wire to the outer ear of the person, so that the earplug can be used in cold environment, and when the environment is hot, the electric heating wire stops working, and the fan provides the function of convection cooling for the outer ear of the person.

[0016] Further, the static screw is composed of a static screw cylinder and a static screw tooth, the static screw cylinder is a hollow cylindrical structure, the front end is closed for mounting an electric motor, and the outer wall of the static screw cylinder is surrounded by the static screw tooth;

[0017] The dynamic screw is composed of a dynamic screw rod, a dynamic screw tooth, a baffle and a sliding block, the dynamic screw rod is a solid cylindrical structure, the outer diameter of the dynamic screw rod is smaller than the inner diameter of the static screw cylinder, that is, the dynamic screw rod can be inserted into the static screw cylinder and is smaller than the cylinder depth of the static screw cylinder, the end of the dynamic screw rod is provided with a baffle, the end of the dynamic screw tooth is fixed on the baffle, and the gap between the dynamic screw tooth and the outer wall of the dynamic screw rod is formed to ensure that the static screw and the dynamic screw can rotate in and out to realize the state transformation of lengthening and compression; the front part of the dynamic screw tooth is provided with a sliding block.

[0018] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0019] 1. The noise reduction earplug is provided with the function of situation awareness, when strong noise suddenly occurs, the noise reduction earplug can absorb stronger noise by changing the static screw and the dynamic screw into the contraction state, and the vibration of the electric motor makes the ear canal perceive, realizing the function of automatic early warning of the earplug when noise occurs.

[0020] 2. The noise reduction earplug of the present application, the outer ear body of the earplug is provided with a variable diameter push rod which can move along the push rod sleeve, the variable diameter push rod can be uniformly adjusted and fixed by a stop screw ring, each variable diameter push rod can be freely adjusted, a foam ring is installed on the periphery of the variable diameter push rod, the size and shape of the inner diameter of the foam ring can be adjusted according to the movement of the variable diameter push rod to change to adapt to the shape of the outer ear of different users.

[0021] 3. The noise reduction earplug of the present application is provided with an electric heating wire and a fan, the electric heating wire can generate heat, and the fan can blow the heat generated by the electric heating wire to the outer ear of a person, so that the earplug can be used in cold environment, when the environment is hot, the electric heating wire stops working, and the fan can provide the function of convective cooling for the outer ear of a person, and can be used in various environments.

[0022] 4. In the noise reduction earplug of the present application, the electric motor is arranged close to the ear canal, when the sound sensing element detects strong noise, the static screw and the dynamic screw change to the retracted state, the driving force is provided by the electric motor, so that the person can feel the vibration signal of the electric motor, and the situational awareness function of the earplug is realized. At the same time, the state between the static screw and the dynamic screw can be actively adjusted to meet the needs of the user; but when the sound sensing element detects strong noise, in order to ensure the safety and health of the person's ear, the earplug will default to enter the retracted state of the static screw and the dynamic screw and keep this state, and the active adjustment function is invalid; when the sound sensing element does not detect strong noise, the state between the static screw and the dynamic screw can be actively adjusted according to the needs of the user. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1a It is an exploded view of the inner ear body of the earplug of the present application from one perspective;

[0024] Figure 1b It is an exploded structural schematic view of the inner ear body of the earplug of the present application from another perspective;

[0025] Figure 1c It is Figure 1b a partially enlarged structural schematic view;

[0026] Figure 2 It is an assembly entity view of the inner ear body of the earplug and the outer mold of the earplug;

[0027] Figure 3 It is an appearance view of the inner ear body of the earplug;

[0028] Figure 4 It is a rear view of the inner ear body of the earplug;

[0029] Figure 5 It is a schematic view when the static screw and the dynamic screw are in the elongated state;

[0030] Figure 6 It is a schematic view when the static screw and the dynamic screw are in the retracted state;

[0031] Figure 7 Overall exploded view of the noise reduction earplug of the present invention;

[0032] Figure 8 Overall structure view I of the noise reduction earplug of the present invention without foam ring installed;

[0033] Figure 9 Overall structure view II of the noise reduction earplug of the present invention without foam ring installed;

[0034] Figure 10 Schematic diagram I of the variable-diameter push rod of the earplug outer ear body when it is gathered inward;

[0035] Figure 11 Schematic diagram II of the variable-diameter push rod of the earplug outer ear body when it is gathered inward;

[0036] Figure 12 Schematic diagram I of the variable-diameter push rod of the earplug outer ear body when it is spread outward;

[0037] Figure 13 Schematic diagram II of the variable-diameter push rod of the earplug outer ear body when it is spread outward;

[0038] Figure 14 Schematic diagram of the earplug outer ear body when it is equipped with a foam ring;

[0039] Figure 15 Partial enlarged view of the push rod sliding sleeve;

[0040] Figure 16 Schematic diagram of the earplug outer ear body and the retaining screw stop ring assembly;

[0041] Figure 17 Schematic diagram of the earplug outer ear body after removing the retaining screw stop ring assembly;

[0042] Figure 18 Overall structure view of the noise reduction earplug of the present invention with foam ring installed;

[0043] Figure 19 Schematic diagram of the noise reduction earplug of the present invention with heating wire installed;

[0044] Figure 20 Schematic diagram of the noise reduction earplug of the present invention with fan installed;

[0045] Figure 21 Structure schematic diagram of the 8 sets of variable-diameter push rods of the present invention in different positions.

[0046] Reference signs: 1-earplug inner body, 11-stationary screw, 110-stationary screw cylinder, 111-stationary screw tooth, 12-moving screw, 120-moving screw rod, 121-moving screw tooth, 122-baffle, 123-sliding block, 13-electric motor, 14-screw guide rail, 15-screw guide rail channel, 2-earplug outer mold, 3-earplug outer ear body, 31-variable diameter push rod, 32-first connecting ring, 33-lock screw baffle ring, 34-second connecting ring, 35-fixing screw, 36-push rod sliding sleeve, 361-push rod screw, 37-foam ring, 38-baffle ring thread, 39-electric heating wire, 310-fan. DETAILED DESCRIPTION

[0047] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0048] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0049] It should be noted that: similar reference signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0050] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0051] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0052] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0053] Example 1

[0054] like Figures 1a-21 As shown, this embodiment provides a noise-canceling earplug with strong noise active protection based on multi-environment application situational awareness, including an inner ear body 1 and an outer ear body 3. The inner ear body 1 is provided with a stationary spiral 11, a moving spiral 12, an electric motor 13, a spiral guide rail 14, and a spiral guide rail channel 15. The spiral guide rail channel 15 is disposed on the inner wall of the inner ear body 1, and the spiral guide rail 14 is fixedly installed in the spiral guide rail channel 15. The front end of the stationary spiral 11 is provided with an electric motor 13, and the end of the stationary spiral 11 and the moving spiral 12 form a spiral nested connection. The front part of the moving spiral 12 is provided with a slider 123, and the slider 123 is slidably connected to the spiral guide rail 14.

[0055] For details, see Figure 1b The static spiral 11 is composed of a static spiral cylinder 110 and static spiral teeth 111. The static spiral cylinder 110 is a hollow cylindrical structure with a closed front end for mounting an electric motor 13. The outer wall of the static spiral cylinder 110 is surrounded by static spiral teeth 111. In this embodiment, the static spiral teeth 111 form 5 rings of sound wave channels.

[0056] The movable spiral 12 consists of a movable spiral rod 120, movable spiral teeth 121, a baffle 122, and a slider 123. The movable spiral rod 120 is a solid cylindrical structure with an outer diameter smaller than the inner diameter of the stationary spiral cylinder 110, meaning the movable spiral rod 120 can extend into the stationary spiral cylinder 110 but is less than the depth of the cylinder. A baffle 122 is provided at the end of the movable spiral rod 120 to restrict its complete entry into the stationary spiral cylinder 110. The end of the movable spiral teeth 121 is fixed to the baffle 122, and a gap is formed between the movable spiral teeth 121 and the outer wall of the movable spiral rod 120 to ensure that the stationary spiral 11 and the movable spiral 12 can rotate in and out, achieving elongation and compression state changes. The slider 123 is provided on one of the front teeth of the movable spiral teeth 121; in this embodiment, the movable spiral teeth 121 form 6 turns of acoustic channels. The initial state of the stationary spiral 11 and the moving spiral 12 is that the front part of the moving spiral tooth 121 is screwed into part of the tail of the stationary spiral tooth 111, and the stationary spiral 11 and the moving spiral 12 together form 3 turns of sound wave channel.

[0057] The earplug outer ear body 3 is provided with a variable-diameter push rod 31, a first connecting ring 32, a set screw retainer ring 33, a second connecting ring 34, a fixing screw 35, a push rod sleeve 36, and a retainer ring thread 38. The outer ring wall of the first connecting ring 32 is provided with a retainer ring thread 38, the retainer ring thread 38 is movably connected with the set screw retainer ring 33, and the retainer ring thread 38 is uniformly distributed with a plurality of push rod sleeves 36 on one side. The first connecting ring 32 on the push rod sleeve 36 is a through-hole structure, and the push rod sleeve 36 is slidably connected with the variable-diameter push rod 31; the push rod sleeve 36 is provided with a push rod screw 361, and the push rod screw 361 is fixed to the variable-diameter push rod 31 through the set screw retainer ring 33;

[0058] The earplug inner ear body 1 and the earplug outer ear body 3 can be installed and matched through the first connecting ring 32 and the second connecting ring 34, and fixed through the fixing screw 35 on the second connecting ring 34; the outer wall of the earplug inner ear body 1 can be assembled and nested with the inner wall of the earplug outer mold 2, and the outer wall of the earplug outer mold 2 is set as a foam soft material to fit the human inner ear wall.

[0059] The static screw 11 arranged inside the earplug inner ear body 1 can rotate under the driving force of the electric motor 13, thereby driving the dynamic screw 12 to move along the screw guide rail 14, so that the static screw 11 and the dynamic screw 12 have the function of changing the extension and contraction state; the electric motor 13 is a stepping motor, and the number of rotations of the electric motor 13 is fixed when it rotates; the screw guide rail channel 15 has a fixing effect on the screw guide rail 14.

[0060] Specifically, the earplug inner ear body 1 tail is provided with a sound sensing element, when no strong noise is detected, taking the sound amplitude as the detection standard, the static screw 11 and the dynamic screw 12 are in the elongated state, as shown in Figure 5 , so that the sound wave only needs to pass through the 4-turn sound wave channel composed of the static screw 11 and the 3-turn sound wave channel composed of the static screw 11 and the dynamic screw 12; when the sound sensing element detects strong noise, the static screw 11 and the dynamic screw 12 change from the original elongated state to the contracted state, as shown in Figure 6, so the sound wave needs to pass through the 11 turns of the sound wave channel composed of the static spiral 11 and the dynamic spiral 12, which greatly reduces the intensity of the sound wave. The electric motor 13 is arranged close to the ear canal. When strong noise is detected, the static spiral 11 and the dynamic spiral 12 change to a retracted state, and the driving force is provided by the electric motor 13, so that the human ear can feel the vibration signal of the electric motor 13, thereby realizing the situational awareness function of the earplug. At the same time, the state between the static spiral 11 and the dynamic spiral 12 can be actively adjusted to meet the needs of the user; but when the sound sensing element detects strong noise, in order to ensure the safety and health of the human ear, the earplug will default to the retracted state of the static spiral 11 and the dynamic spiral 12 and maintain this state, and the active adjustment function is disabled. When the sound sensing element does not detect strong noise, the state between the static spiral 11 and the dynamic spiral 12 can be actively adjusted according to the needs of the user.

[0061] Specifically, the variable-diameter push rod 31 provided on the outer ear body 3 of the earplug can move along the push rod sleeve 36. The push rod sleeve 36 is provided with push rod screws 361. The push rod sleeve 36 and the push rod screws 361 are uniformly distributed along the circumference of the outer ear body 3 of the earplug. Eight push rod screws 361 are uniformly adjusted and fixed by the lock screw stop ring 33. The lock screw stop ring 33 rotates on the stop ring thread 38 to determine the fixing effect of the push rod screws 361 on the variable-diameter push rod 31.

[0062] The inner ear body 1 of the earplug and the outer ear body 3 of the earplug can be used in combination. The inner ear body 1 of the earplug can also be used alone, and the outer ear body 3 of the earplug is regarded as an accessory. The outer ear body 3 of the earplug can be installed and matched on the inner ear body of the earplug through the first connecting ring 32 and the second connecting ring 34. The position between the outer ear body 3 of the earplug and the inner ear body 1 of the earplug can be adjusted according to the needs of the user, and fixed through the fixing screws 35 on the second connecting ring.

[0063] The outer ear body 3 of the earplug can be provided with a foam ring 37. The foam ring 37 is installed around the variable-diameter push rod 31. Each variable-diameter push rod 31 can be freely adjusted. The foam ring 37 can adjust and change the size and shape of the inner diameter of the foam ring 37 according to the movement of the variable-diameter push rod 31 to adapt to the shape of the outer ear of different people. In this embodiment, the variable-diameter push rod 31 is a T-shaped structure, the top is slidingly connected in the push rod sleeve 36, and one end close to the center of the first connecting ring is provided with a cross bar.

[0064] Embodiment 2

[0065] The density of the foam ring 37 gradually increases from the inner diameter to the outer diameter, that is, the density of the side close to the human ear is small, and the density of the side far from the human ear is large. The specific density of the foam ring 37 is set to 1 / 2 of the average density of the human ear at the inner diameter, and 3 / 2 of the average density of the human ear at the outer diameter. The density formula is consistent with Where R is the outer diameter of the foam ring, r1 is the inner diameter of the foam ring, r is the independent variable, ρ0 is the average density of a human ear, and k is the magnitude of the density gradient of the foam.

[0066] Furthermore, the foam ring density of 37 is set in this way to meet the needs of different users. The design of the lower density of the foam ring closer to the ear can reduce the contact force between the two, making the user's ear more comfortable.

[0067] Example 3

[0068] The situational awareness function collects ambient noise through a sound sensor (containing a microphone) and analyzes the amplitude of the ambient noise to determine whether it is strong noise. This invention uses 130 dB as a benchmark. When the sound sensor detects strong noise, the stationary spiral 11 and the moving spiral 12 retract. Only when the sound sensor does not detect strong noise can the user actively adjust the state between the stationary spiral 11 and the moving spiral 12 to ensure the user's ear health and safety under strong noise conditions. The principle of the situational awareness function is: sound sensor (monitors ambient noise) → processing chip (analyzes the noise curve, mainly amplitude information) → electric motor controller (determines the rotation control of the electric motor based on whether the ambient noise is strong noise) → determining the state between the stationary spiral 11 and the moving spiral 12.

[0069] Example 4

[0070] The earplug outer ear body 3 can also be equipped with a heating wire 39 and a fan 310. The heating wire 39 can generate heat, and the fan 310 can blow the heat generated by the heating wire 39 to the ear, so that the earplug can be used in cold environments. When the environment is hot, the heating wire 39 stops working, and the fan 310 can provide convection cooling for the ear.

[0071] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

[0072] This invention is not limited to the embodiments described above. The above description of specific embodiments is intended to illustrate and explain the technical solutions of this invention. The specific embodiments described above are merely illustrative and not restrictive. Without departing from the spirit and scope of the claims, those skilled in the art can make many specific modifications based on the teachings of this invention, and these modifications all fall within the scope of protection of this invention.

Claims

1. A multi-environment application posture-aware, active defense, noise-reducing earplug, comprising: The earplug inner ear body and the earplug outer ear body are detachably connected through the first connecting ring and the second connecting ring, and are fixed through the fixing screw on the second connecting ring. The static screw can rotate under the driving force of the electric motor, and then drive the dynamic screw to move along the spiral guide rail through the slider, so as to realize the function of changing the extension and contraction state of the static screw and the dynamic screw. The earplug inner ear body tail is provided with a sound sensing element, and the sound amplitude is used as the detection standard.

2. The active protection type noise reduction earplug based on multi-environment application situation awareness according to claim 1, characterized in that, The static screw has m sound wave channels, and the dynamic screw has n sound wave channels.

3. The active protection type noise reducing earplug based on multi-environment application situation awareness of claim 1, wherein, When the sound sensing element detects strong noise exceeding 130 decibels, the static screw and the dynamic screw change from the original extension state to the contraction state, and the sound wave needs to pass through the m+n sound wave channels composed of the static screw and the dynamic screw, reducing the intensity of the sound wave.

4. The active protection type noise reducing earplug based on multi-environment application situation awareness of claim 1, wherein, The push rod sleeve and the push rod screw are evenly distributed along the circumference of the first connecting ring, and the eight push rod screws are uniformly adjusted and fixed by the clamping screw retainer.

5. The active protection type noise reducing earplug based on multi-environment application situation awareness of claim 1, wherein, The earplug outer ear body is detachably connected with the earplug inner ear body as a accessory, and is installed and matched on the earplug inner ear body through the first connecting ring and the second connecting ring. According to the needs of the user, the position between the earplug outer ear body and the earplug inner ear body is adjusted, and is fixed through the fixing screw on the second connecting ring.

6. The active protection type noise reducing earplug based on multi-environment application situation awareness of claim 1, wherein, The earplug outer ear body is provided with a foam ring, the foam ring surrounds the variable-diameter push rod, each variable-diameter push rod can be freely adjusted, the foam ring can adjust the size and shape of the inner diameter of the foam ring according to the movement of the variable-diameter push rod to adapt to the shape of the outer ear of different people.

7. The active protection type noise reducing earplug based on multi-environment application situation awareness of claim 6, wherein, The density of the foam ring gradually increases from the inner diameter to the outer diameter, that is, the density of the side close to the human ear is small, and the density of the side far from the human ear is large; the specific density of the foam ring is set as the density of the inner diameter is 1 / 2 of the average density of the human ear, and the density of the outer diameter is 3 / 2 of the average density of the human ear, and the density formula is consistent with wherein R is the outer diameter of the foam ring, r1 is the inner diameter of the foam ring, r is the independent variable, p0 is the average density of the human ear, and k is the density gradient size of the foam.

8. The active protection type noise reducing earplug based on multi-environment application situation awareness of claim 1, wherein, The earplug outer ear body is also provided with an electric heating wire and a fan, the electric heating wire can generate heat, the fan is used to blow the heat generated by the electric heating wire to the outer ear of a person, realizing the use of the earplug in a cold environment, when the environment is hot and dry, the electric heating wire stops working, and the fan provides the function of convective cooling for the outer ear of a person.

9. The active protection type noise reduction earplug based on multi-environment application situation awareness according to any one of claims 1-3, characterized in that, The static screw is composed of a static screw cylinder and a static screw tooth, the static screw cylinder is a hollow cylindrical structure, the front end is closed for installing an electric motor, and the outer wall of the static screw cylinder is surrounded by the static screw tooth; The dynamic screw is composed of a dynamic screw rod, a dynamic screw tooth, a baffle and a sliding block, the dynamic screw rod is a solid cylindrical structure, the outer diameter of the dynamic screw rod is smaller than the inner diameter of the static screw cylinder, that is, the dynamic screw rod can be inserted into the static screw cylinder and is smaller than the cylinder depth of the static screw cylinder, the end of the dynamic screw rod is provided with a baffle, the end of the dynamic screw tooth is fixed on the baffle, and the gap between the dynamic screw tooth and the outer wall of the dynamic screw rod is formed to ensure that the static screw and the dynamic screw can be rotated in and out to realize the state transformation of lengthening and compression; the front part of the dynamic screw tooth is provided with a sliding block.

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